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hw/sd/omap_mmc: Don't use sd_cmd_type_t

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In commit 1ab08790bb we did some refactoring of the SD card
implementation, which included a rearrangement of the sd_cmd_type_t
enum values.  Unfortunately we didn't notice that this enum is not
used solely inside the SD card model itself, but is also used by the
OMAP MMC controller device.  In the OMAP MMC controller, it is used
to implement the handling of the Type field of the MMC_CMD register,
so changing the enum values so that they no longer lined up with the
bit definitions for that register field broke the controller model.
The effect is that Linux fails to boot from an SD card on the "sx1"
machine.

Give omap-mmc its own enum which we can document as needing to match
the encoding used in this device's register, so it isn't sharing
sd_cmd_type_t with the SD card model any more.  We can then move
sd_cmd_type_t's definition out of sd.h and into sd.c, which is the
only place that uses it.

Cc: qemu-stable@nongnu.org
Fixes: 1ab08790bb ("hw/sd/sdcard: Store command type in SDProto")
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20241017162755.710698-1-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2024-10-29 12:54:42 +00:00
parent 1505b651fd
commit 77dd098a5e
3 changed files with 24 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
hw/sd/omap_mmc.c
View File

@ -103,6 +103,7 @@ static void omap_mmc_fifolevel_update(struct omap_mmc_s *host)
}
}
/* These must match the encoding of the MMC_CMD Response field */
typedef enum {
sd_nore = 0, /* no response */
sd_r1, /* normal response command */
@ -112,8 +113,17 @@ typedef enum {
sd_r1b = -1,
} sd_rsp_type_t;
/* These must match the encoding of the MMC_CMD Type field */
typedef enum {
SD_TYPE_BC = 0, /* broadcast -- no response */
SD_TYPE_BCR = 1, /* broadcast with response */
SD_TYPE_AC = 2, /* addressed -- no data transfer */
SD_TYPE_ADTC = 3, /* addressed with data transfer */
} MMCCmdType;
static void omap_mmc_command(struct omap_mmc_s *host, int cmd, int dir,
sd_cmd_type_t type, int busy, sd_rsp_type_t resptype, int init)
MMCCmdType type, int busy,
sd_rsp_type_t resptype, int init)
{
uint32_t rspstatus, mask;
int rsplen, timeout;
@ -128,7 +138,7 @@ static void omap_mmc_command(struct omap_mmc_s *host, int cmd, int dir,
if (resptype == sd_r1 && busy)
resptype = sd_r1b;
if (type == sd_adtc) {
if (type == SD_TYPE_ADTC) {
host->fifo_start = 0;
host->fifo_len = 0;
host->transfer = 1;
@ -433,7 +443,7 @@ static void omap_mmc_write(void *opaque, hwaddr offset,
for (i = 0; i < 8; i ++)
s->rsp[i] = 0x0000;
omap_mmc_command(s, value & 63, (value >> 15) & 1,
(sd_cmd_type_t) ((value >> 12) & 3),
(MMCCmdType)((value >> 12) & 3),
(value >> 11) & 1,
(sd_rsp_type_t) ((value >> 8) & 7),
(value >> 7) & 1);

8
hw/sd/sd.c
View File

@ -71,6 +71,14 @@ typedef enum {
sd_illegal = -2,
} sd_rsp_type_t;
typedef enum {
sd_spi,
sd_bc, /* broadcast -- no response */
sd_bcr, /* broadcast with response */
sd_ac, /* addressed -- no data transfer */
sd_adtc, /* addressed with data transfer */
} sd_cmd_type_t;
enum SDCardModes {
sd_inactive,
sd_card_identification_mode,

8
include/hw/sd/sd.h
View File

@ -75,14 +75,6 @@ typedef enum {
UHS_III = 3, /* currently not supported */
} sd_uhs_mode_t;
typedef enum {
sd_spi,
sd_bc, /* broadcast -- no response */
sd_bcr, /* broadcast with response */
sd_ac, /* addressed -- no data transfer */
sd_adtc, /* addressed with data transfer */
} sd_cmd_type_t;
typedef struct {
uint8_t cmd;
uint32_t arg;